Burnish ing-machine



- (No Model.)

lvm-882,581.

8 sheets-sheet .1.

J. ADDY.

BURNISHING MACHINE.

Patented M8y8, 1888.l

IIITIIIIYHIHIIIIIII N. PETERS, Fha! UNITED STATES PATENT' OFFICE. 'l

CHARLES J. ADDY, OF MALDEN, ASSIGNOR TO THE TAPLEY MACHINE i COMPANY, OF BOSTON, MASSACHUSETTS.

BURNISHING-MACHINE.

SPECIFICATION forming partof Letters Patent No. 382,581, dated May 8, 1888. Application filed March16,1888. Serial No. 267,346. (No model.)

.To all whom, it 'may concern:

Beit known that I, CHARLES J. ADDY, of Malden, county of Middlesex, State of Massachusetts,have invented an Improvement in Burnishing-Machines, of which the following description, in connection with the accompanying drawings, is a specication, like letters Aon the drawings representing like parts.

This invention has for its object toimprove the construction of that class of burnishingmachines wherein a rotating tool at the end of a rotating shaft is vibrated about the heel from breast to breast, myinvention embracing novel mechanism for imparting the described mo-4 tions to the rotating tool or-tools.

With a burnishingtool and its shaft, actuated as described, I have combined an equalizing-lever, the purpose of which is to keep the bined with an equalizing-lever pivoted tomove with the said shaft in its oscillations, substantially as will be described; also, in an oscillating shaft,its attached swing-block or collar, and

an arm,combined with an equaliZing-lever pivoted to move with the said shaft in 'its oscillations,and with rotating but jointed tool-carry ing shafts and burnishing-tool to operate substantially as will be describedyalso, in a burnishing-maohine, an oscillating` shaft provided with a pinion, a sector-lever to engage said pinion and oscillate the said shaft, means to vibrate the said sector-lever, an intermediate pinion. loose on the said oscillating shaft, a toothed gear to rotate the said pinion, and a second pinion rotated by the intermediate pinion, referred to, combined with aswing-block, an arm, and connected shafts, and atool to operate substantially as described.

Figure 1 in side :elevation represents aheelburnishing machine embodying my invention. Fig. 1a is a detail showing the equalizing-lever detached; Fig. 2, a top or plan 'View thereof 5 and Eig. 3,a partial front end view, one of the heads being broken off to better show the parts behind it.

The framework A, of suitableshape tosustain the working parts, has erected upon it two like yokes, B B', each of which has suitable bearings to receive a like oscillating` shaft, C, having fast on it a toothed pinion, C', which is engaged by the teeth of a sector-lever, as C2, the said sector-lever having its fulcrum on a stud, C3, and being connected by link C4 with a crank-pin, C5, on a disk or crank, C6, fast to the main shaft C7, mounted in bearings C?, `and rotated in any suitable manner. In Eig. 1 the lower part of the framework is shown as partially broken out to shorten the samev on' the' drawings.

The crank or disk C6 has attached to it a beltpulley,D,which drives a belt,D',eXtended over a second pulley, D2, loose on the stud C3, referred to, the said pulley D2 having as part of it a toothed gear,D3,which,as herein shown,

is rotated continuouslyin one direction and engages two like intermediate pinions, D, loose on the outer ends of the two oscillating shafts C of the burnishing-heads. Each oscillating shaft C has secured to it not only a swing-block or. collar, E, but also a guiding-yoke, E',*the latter guiding each an arm, E2, pivoted at a on the swing block or collar E. Vithinthis arm is placed a shaft, EF', it being provided at its front end witha rotating tool, E.

The rear end of the shaft E3 is provided with a collar, c, notched or shaped to engage a reversely shaped or notched collar, b, at the end of a short shaft, b', (see Fig. 1,) extended through a bearing or sleeve, b2, attached to orL pinion D4, before described. The shaft E3 is prevented from moving longitudinally kin the arm E7 by means of the shoulder 4 on the said shaft at one end and the collar c at its other end.

By pivoting the arm E2 as described it is vpossible to enable the rotating shaft carrying the tool E4 to be moved away from the oscillating shaft C, as the tool in its vibrations about the heel is made to travel from the top-lift end thereof toward and to the heelseat,.the shoe roo the heel of which is being burnished being carried by a jack substantially such as in United States YPatent No. 362,347 or No. 318,340, or in other usual manner-as, for instance, as in my application,Serial No. 265,360, filed February 'Io enable the effective pressure of the tool to remain the same upon all parts of the heel, as stated, I have devised and combined with the machine a novel equalizing-lever, G, it being herein shown as an elbow-lever pivoted at upon the oscillating shaft C and slotted or bifurcated, as at 12, Fig. l, to embrace the arm E1, the latter moving out and in in the said slot 12. This equalizing-lever at one end is provided with a Iroll, as 13, which bears upon the arm E2 and presses the tool against the heel being burnished, the opposite end of the equalizing-lever being weighted, as at 14, to aid in counterbalancing the Weight of the arm E and shaft E3 at the opposite side of theshaft C. In practice the equalizing-levcr G will be acted upon by a suitable spring, as 15, preferably made adjustable as to its eiectivestrength,

the tendency of the said spring being lto keep the roller 13 against the arm E, the effective strength of the spring being increased as the burnishing-tool passes upon parts of the heel of increasing diameter, the increasing power of the spring compensating for the movement of ,the roll 13 back from the tool E* under the conditions stated.

From the foregoing description it will be understood that the tool-carrying shaft and its attached tool will be rotated substantially continuously in the same direction through the gear D3, while the shaft C will be oscillated by the sector-lever to carry the tool from breast to breast of the heel.

The machine herein shown is provided with two like heads, each having a tool-shaft and tool to be operated simultaneously; but I do not desire to limit my invention to a machine having two heads, as I may employ one head,

and so, also, I do not desire to limit the employment of the equalizing-lever herein shown 'fp/to the particular arm E2 herein shown.

I also desire it to be understood that the machine herein described is also adapted to be used for the class of work known as wax burnishing or waxing, wherein friction is exerted in one and the same direction rather than by a reciprocating rubbing action, as in the machine described in the said Patents Nos. 362,347 and 318,340.

I do not desire to limit myself to the employ- -mentofany particular ki nd ofj ack,as the mech anism I have described can be used together with any jack now known to the trade, and is applicable to the so-called Tapley7 machine, whether said jack is automatically moved under the operation of t-hetool or moved by hand.

1. In a burnishing-machine, an oscillating shaft-,its attached swing-block or colla1,and the arm E2,combined with the equalizing-lever pivoted to move with the said shaft in its oscillations, substantially as described.

- 2. The oscillating shaft, its attached swingblock or collar, and the arm E2, combined with the equalizing-lever pivoted to move with the said shaft in its oscillations, and with the rotating but jointed tool-carrying shafts E3 b,bear ings therefor, and burnishing-tool, to operate substantially as described.

3. In a burnishinglmachine, the oscillating shaft provided with a pinion, the sector-lever to engage said pinion and oscillate the said shaft,means to vibrate thesaid sector-lever, the intermediate pinion, D, loose onthe said oscillating shaft, the toothed gear to rotate the said pinion Dt, and the pinion b,rotated by the pinion D,combined with the swing-block,the arm E2,and the connected shafts Ea and b,bearings therefor, and tool, to operate substantially as described.

In testimony whereofIhave signed my name to this specification in the presence of two subscribing witnesses.

CHARLES J. ADDY. 

